A company formed jointly by MTN, Vodacom and Cell C as a result of 2001 Amendments to the Telecommunications Act which mandated ICASA to: “prescribe measures to ensure that number portability shall be introduced in 2005.” –On 30 September 2005 Regulations were promulgated which mandated Implementation within 9 months i.e. 1 July 2006 In the event, due to the complexity of the porting process requiring extensive testing, and by agreement with ICASA, mobile number portability (MNP) was introduced on 10 November 2006. NPC administers a Central Reference Database (CRDB) linked to the operators via a sophisticated network interface. The CRDB is an administrative database which used to track all porting process to effect the porting process from the intial porting request through to providing the new routing data to the operators so that necessary network routing can be updated. With effect From Monday April 26 Geographic Number Portability (GNP) has been Introduced. Telkom and Neotel concluded an agreement to expand the shareholding of NPC to include them. Thus NPC is now jointly owned by Cell C, MTN, Neotel, Telkom and Vodacom with effect from April 20 2010. NPC accordingly now offer GNP porting services..